System and method for communication using orbital angular momentum with multiple layer overlay modulation
First Claim
1. A communications system, comprising:
- RF processing circuitry for receiving a plurality of data streams and processing the plurality of data streams to associate with each of the plurality of data streams an orthogonal function to cause each of the plurality of data streams to be mutually orthogonal to each other on an RF link to enable transmission of each of the plurality of data streams on the RF link at a same time, wherein the orthogonal function comprises at least one of a Hermite-Gaussian function, a Laguerre-Gaussian function, a Jacobi polynomial, a Gegenbauer polynomial, a Legendre polynomial, a Chebyshev polynomial, a Q-function, a time-limited and bandwidth-limited function, a rectangular function, a cylindrical function and a spherical function;
optical processing circuitry for receiving the plurality of data streams and processing the plurality of data streams to associate with each of the plurality of data streams the orthogonal function to cause each of the plurality of data streams to be mutually orthogonal to each other on an optical link to enable transmission of each of the plurality of data streams on the optical link at a same time;
switching circuitry for multiplexing between the RF link and the optical link responsive to operating conditions on the RF link and the optical link;
a signal separator for separating the plurality of data streams having different orthogonal functions applied thereto from each other that are received over the RF link or the optical link;
second RF processing circuitry for processing data received over the RF link to remove the orthogonal function from each of the plurality of data streams received together over the RF link;
second optical processing circuitry for processing data received over the optical link to remove the orthogonal function from each of the plurality of data streams received together over the optical link; and
second switching circuitry for switching between the second RF processing circuitry and the second optical processing circuitry responsive to the operating conditions on the RF link and the optical link.
1 Assignment
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Accused Products
Abstract
A communications system includes RF processing circuitry for receiving a plurality of data streams and processing the plurality of data streams to associate with each of the plurality of data streams an orthogonal function to cause each of the plurality of data streams to be mutually orthogonal to each other on an RF link to enable transmission of each of the plurality of data streams on the RF link at a same time. Optical processing circuitry receives the plurality of data streams and processes the plurality of data streams to associate with each of the plurality of data streams the orthogonal function to cause each of the plurality of data streams to be mutually orthogonal to each other on an optical link to enable transmission of each of the plurality of data streams on the optical link at a same time. Switching circuitry multiplexes between the RF link and the optical link responsive to operating conditions on the RF link and the optical link.
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Citations
13 Claims
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1. A communications system, comprising:
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RF processing circuitry for receiving a plurality of data streams and processing the plurality of data streams to associate with each of the plurality of data streams an orthogonal function to cause each of the plurality of data streams to be mutually orthogonal to each other on an RF link to enable transmission of each of the plurality of data streams on the RF link at a same time, wherein the orthogonal function comprises at least one of a Hermite-Gaussian function, a Laguerre-Gaussian function, a Jacobi polynomial, a Gegenbauer polynomial, a Legendre polynomial, a Chebyshev polynomial, a Q-function, a time-limited and bandwidth-limited function, a rectangular function, a cylindrical function and a spherical function; optical processing circuitry for receiving the plurality of data streams and processing the plurality of data streams to associate with each of the plurality of data streams the orthogonal function to cause each of the plurality of data streams to be mutually orthogonal to each other on an optical link to enable transmission of each of the plurality of data streams on the optical link at a same time; switching circuitry for multiplexing between the RF link and the optical link responsive to operating conditions on the RF link and the optical link; a signal separator for separating the plurality of data streams having different orthogonal functions applied thereto from each other that are received over the RF link or the optical link; second RF processing circuitry for processing data received over the RF link to remove the orthogonal function from each of the plurality of data streams received together over the RF link; second optical processing circuitry for processing data received over the optical link to remove the orthogonal function from each of the plurality of data streams received together over the optical link; and second switching circuitry for switching between the second RF processing circuitry and the second optical processing circuitry responsive to the operating conditions on the RF link and the optical link. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for transmitting a plurality of input streams, comprising:
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receiving a plurality of data streams at RF processing circuitry; processing, at the RF processing circuitry the plurality of data streams to associate with each of the plurality of data streams an orthogonal function to cause each of the plurality of data streams to be mutually orthogonal to each other on an RF link to enable transmission of each of the plurality of data streams on the RF link at a same time, wherein the orthogonal function comprises at least one of a Hermite-Gaussian function, a Laguerre-Gaussian function, a Jacobi polynomial, a Gegenbauer polynomial, a Legendre polynomial, a Chebyshev polynomial, a Q-function, a time-limited and bandwidth-limited function, a rectangular function, a cylindrical function and a spherical function; receiving the plurality of data streams at optical processing circuitry; processing, at the optical processing circuitry, the plurality of data streams to associate with each of the plurality of data streams the orthogonal function to cause each of the plurality of data streams to be mutually orthogonal to each other on an optical link to enable transmission of each of the plurality of data streams on the optical link at a same time; switching transmissions of the plurality of data between the RF link and the optical link responsive to operating conditions on the RF link and the optical link; receiving the plurality of data streams over the RF link or the optical link; separating the plurality of data streams having different orthogonal functions applied thereto from each other that are received over the RF link or the optical link; processing, using second RF processing circuitry, data received over the RF link to remove the orthogonal function from each of the plurality of data streams received together over the RF link; processing, using second optical processing circuitry, data received over the optical link to remove the orthogonal function from each of the plurality of data streams received together over the optical link; and switching between the second RF processing circuitry and the second optical processing circuitry responsive to the operating conditions on the RF link and the optical link. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification